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Earthquake breaking news, Minor World Earthquakes Magnitude -3.9

Minor earthquake 3.75 mag, 54 km WSW of Stella, Puerto Rico


Earthquake location 18.1343S, -67.7208WA minor earthquake magnitude 3.75 (ml/mb) has struck on Thursday, 54 kilometers (34 miles) from Stella in Puerto Rico. Exact time and date of earthquake 28/08/25 / 2025-08-28 16:06:19 / August 28, 2025 @ 4:06 pm UTC/GMT. Exact location of earthquake, longitude -67.7208 West, latitude 18.1343 North, depth = 72 km. The 3.75-magnitude earthquake has occurred at 16:06:19 / 4:06 pm (local time epicenter). The earthquake was roughly at a depth of 72 km (45 miles). Event id: pr2025240001. Ids that are associated to the earthquake: us7000qrkb, pr2025240001.

Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Isabela, Sabana Grande, San Sebastián. Nearby country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). The epicenter was 62 km (38 miles) from Mayagüez (c. 78 600 pop), 68 km (42 miles) from Aguadilla (c. 16 100 pop), 84 km (52 miles) from Isabela (c. 12 500 pop), 72 km (45 miles) from San Germán (c. 12 100 pop), 63 km (39 miles) from Hormigueros (c. 11 900 pop), 80 km (50 miles) from San Sebastián (c. 11 600 pop).

Every year there are an estimated 130,000 minor earthquakes in the world. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. In the past 24 hours, there have been four, in the last 10 days seventeen, in the past 30 days fourty-seven and in the last 365 days four hundred and sixty earthquakes of magnitude 3.0 or greater that was reported nearby.

How would you describe the shaking?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 54 km WSW of Stella, Puerto Rico. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 3.75 mb The magnitude for the event.
Longitude -67.7208° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.1343° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 72 km Depth of the event in kilometers.
Place 54 km WSW of Stella, Puerto Rico Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-08-28 16:06:19 Time when the event occurred. UTC/GMT
Updated 2025-08-28 17:50:52 Time when the event was most recently updated. UTC/GMT
Timezone offset Timezone offset from UTC in minutes at the event epicenter.
Felt The total number of felt reports
CDI The maximum reported intensity for the event.
MMI The maximum estimated instrumental intensity for the event.
Alert Level The alert level from the PAGER earthquake impact scale. Green, Yellow, Orange or Red.
Review Status reviewed Indicates whether the event has been reviewed by a human.
Tsunami 0 This flag is set to "1" for large events in oceanic regions and "0" otherwise. The existence or value of this flag does not indicate if a tsunami actually did or will exist.
SIG 216 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network pr The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,us,pr, A comma-separated list of network contributors.
Number of Stations Used 22 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.5819 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.2 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 198 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type md The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID pr2025240001 Id of event.
Event Code 2025240001 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000qrkb,pr2025240001, A comma-separated list of event ids that are associated to an event.

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